ThinkPad T420 - Chapter 10. Parts List

Chapter10.Partslist
Thischaptercontainsfollowinglistsoftheserviceparts.
•“Overall”onpage134
•“LCDFRUs”onpage155
•“Keyboard”onpage160
•“Miscellaneousparts”onpage162
•“Informationaboutacpoweradapters”onpage164
•“Powercords”onpage165
•“Recoverydiscs”onpage166
•“Commonservicetools”onpage173
Notes:
•EachFRUisavailableforalltypesormodels,unlessspecictypesormodelsarespecied.
•FRUwithspecicmodelslistedanddescribedasxxU(whereUisanexampleofacountrydesignator)shouldbe
usedforallmodelsendinginU.
•FRUwithspecicmodelslistedanddescribedas3Dx(where3Disanexampleofauniqueconguration)shouldbe
usedforallofthesemodels,unlessspeciccountryorregiondesignatorisspecied.
•ACRU(customerreplaceableunit)isidentiedbyasingleasterisk(*)ortwoasterisks(**)intheCRUIDcolumn.An
NintheCRUIDcolumnmeansthatthepartisnotaCRU.Asingleasterisk(*)meansthatthepartisaSelf-service
CRU;twoasterisks(**)meansthatthepartisanOptional-serviceCRU.
ExternalCRUstatementtocustomers:
Someproblemswithyourproductcanberesolvedwithareplacementpartyoucaninstallyourself,called
a“CustomerReplaceableUnit”or“CRU.”SomeCRUsaredesignatedasSelf-serviceCRUsandothersare
designatedasOptional-serviceCRUs.InstallationofSelf-serviceCRUsisyourresponsibility;youmayrequest
thatLenovoinstallsanOptional-serviceCRUaccordingtothewarrantyserviceforyourproduct.Whereyouare
installingtheCRU,LenovowillshiptheCRUtoyou.CRUinformationandreplacementinstructionsareshipped
withyourproductandareavailablefromLenovoatanytimeuponrequest.YoumayndalistofCRUsinthe
publicationsthatshipwithyourproductorathttp://www.lenovo.com/CRUs.Youmayberequiredtoreturnthe
defectivepartthatisreplacedbytheCRU.Whenreturnisrequired:(1)returninstructions,aprepaidshippinglabel,
andacontainerwillbeincludedwiththereplacementCRU;and(2)youmaybechargedforthereplacementCRUif
Lenovodoesnotreceivethedefectivepartwithinthirty(30)daysofyourreceiptofthereplacementCRU.Seeyour
LenovoLimitedWarrantydocumentationforfulldetails.
ThinkPadNotebookscontainthefollowingtypesofCRUs:
Self-serviceCRUs:TheseCRUsunplugorareheldbynomorethantwoscrews.Examplesofthesetypes
ofCRUsincludetheacpoweradapter,powercord,battery,andharddiskdrive.OtherSelf-serviceCRUs
dependingonproductdesignmayincludethememorymodule,wirelesscard,keyboard,andpalmrestwith
ngerprintreaderandtouchpad.
Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerthatareconcealedbyanaccess
panelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,thespecic
CRUisvisible.
•FRUsmarkedwithOPareavailableasoptions.
©CopyrightLenovo2012
133
Downloaded from LpManual.com Manuals